The ksmbd server through 3.4.2, as used in the Linux kernel through 5.15.8, sometimes communicates in cleartext even though encryption has been enabled. This occurs because it sets the SMB2_GLOBAL_CAP_ENCRYPTION flag when using the SMB 3.1.1 protocol, which is a violation of the SMB protocol specification. When Windows 10 detects this protocol violation, it disables encryption.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T04:32:13.649Z

Reserved: 2021-12-16T00:00:00

Link: CVE-2021-45100

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-12-16T05:15:08.827

Modified: 2024-11-21T06:31:57.400

Link: CVE-2021-45100

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-12-14T00:00:00Z

Links: CVE-2021-45100 - Bugzilla

cve-icon OpenCVE Enrichment

No data.